The Collaborative International Dictionary of English v.0.48:

Torula \Tor"u*la\, n.; pl. Torulae [NL., dim. of L. torus a
   semicircular molding.] (Biol.)
   (a) A chain of special bacteria.
   (b) A genus of budding fungi. Same as Saccharomyces. Also
       used adjectively.
       [1913 Webster]